Flow cytometric analysis in colorectal carcinoma: prognostic significance of cellular DNA content.
The prognostic value of DNA ploidy status was evaluated prospectively in 70 patients with colorectal carcinoma. Cellular DNA content was measured by flow cytometry from fresh specimens with multiple site sampling. Seventy-five percent of cases exhibited a DNA aneuploid pattern. In a univariate analysis, DNA ploidy status showed a statistically significant correlation with survival (p less than 0.05), weaker than Dukes' stage (p less than 0.001). No correlation was observed between survival and presence of multiple DNA stemlines. In a multivariate analysis, Dukes' stage was the strongest prognostic indicator (p = 0.01) while DNA ploidy status did not show an independent prognostic value. It is concluded that DNA ploidy status is associated with pathological features of aggressive malignancy, but it does not have a determinant role in predicting survival.
Schillaci
A
A
Department of Surgery, University La Sapienza, Rome, Italy.
Tirindelli
D D
DD
Ferri
M
M
Teodori
L
L
Mauro
F
F
Nicolanti
V
V
Stipa
S
S
D000230:Adenocarcinoma / Q000235:genetics* / Q000401:mortality / Q000473:pathology; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015179:Colorectal Neoplasms / Q000235:genetics* / Q000401:mortality / Q000473:pathology; D004273:DNA, Neoplasm / Q000235:genetics*; D005260:Female; D005434:Flow Cytometry; D006801:Humans; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011003:Ploidies; D011379:Prognosis; D012044:Regression Analysis; D015996:Survival Rate
D004273:DNA, Neoplasm